I am so excited and can hardly wait! I'm worse than my kids. We finally figured out our "costumes". We didn't want to go full on costume as we are coming from NorCal and the hassle of packing and wearing in park just seemed too much/uncomfortable. Instead, we are loosely themed as the Avengers with each of us having a different t-shirt/hoodie and some matching clothes as a nod to costume (Captain America, Hulk, Black Widow, Iron Man). Lame compared to some I have seen online, but we'll be comfy and at least somewhat themed.
Also, I found cute bags at our local Walgreen's which I thought would be good for treat bags. I'm not sure how to post images here or I would show them. They are disney themed, large and inexpensive.